vievy vievy
  • 01-10-2021
  • Mathematics
contestada

Find the value of x if the arithmetic mean of 3 and 3x+5 is 8?

Respuesta :

JohnAnkrah
JohnAnkrah JohnAnkrah
  • 01-10-2021

Answer:

3x

Step-by-step explanation:

3x+5=8

Group like terms

3x=8-5

3x=3

Divide both side by the co-efficient of x which is 3

3x/3=3/3

x=1

Answer Link

Otras preguntas

Find the solution set for the open sentence with the given replacement set. w2 – 1 = w + 5, {0, 2, 3, 5}
What is the mass of a stone moving at a speed of 15 meters/second and having a momentum of 7.5 kilogram·meters/second? a. 0.5 kilograms b. 1.5 kilograms c. 11
La reina ________princesa. A. hay B. habia C. eran D. era
what is 22% as a decimal
How do i solve this?
Dina started chores at 8:15 am and finished at 9:05 am it took her 30 minutes to clean her room and she spent the rest of the time bathing her dog. How long did
Arrange the numbers from least to greatest -0.43, -0.34, -4/9, -2/7, -0.434
Lighting the lantern— the yellow chrysanthemums lose their color. What motif is presented in the second line of the haiku? A. art B. change C. nature D. time
0.63 =1.00 0.634 plus what equals a dollar
I need help with 3-6